L5514
LINK2 Modem
HA470212 Issue 5
© 1997, SSD Drives Inc., 9225 Forsyth Park Drive, Charlotte, NC 28273-3884
Page 2 of 2
V:\470XXX\212\HA\HA470212_issue 5.DOC
Troubleshooting
The most common causes of transmission failure are:
1. Noisy phone lines or switching through PBX systems.
2. Local modem has a data baud rate of less than 9600 baud.
3. Incorrect communication settings on the local computer.
4. The modem settings within ConfigEd V5.x or DSD are not supported by the local modem’s command set.
5. Incorrect or broken connection between the wall jack and the L5514
LINK
modem or the local modem.
LEDS
CD
–
Carrier Detect
ON
once phone line connection has been established, and stays on while connected.
TR –
Data Terminal Ready
Should be
ON
at all times.
RD
-
Receive Data
ON
whenever characters are received through phone line.
TD
-
Transmit Data
ON
whenever the modem sends characters out the phone line.
Power
- Power
ON
when power is applied to the modem.
Hookup Diagram
Dedicated Phone Line
wall jack
Modem Serial cable
Regulated 24Vdc
Power Supply
LINK 2
Hardware
Telephone cable
DB9 to
RJ11
converter
